--- title: "VSUN VSUN415N-108MH 415W Solar Panel - Specs & Review | ComparePV" description: "VSUN VSUN415N-108MH 415W solar panel. Specs: 21.25% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/vsun-vsun415n-108mh" updated: 2026-09-11 --- # VSUN VSUN415N-108MH Middle of its segment, modest efficiency 1,218 panels in the segment TOPCon 400-450 W ## Identity - **Manufacturer:** VSUN - **Model:** VSUN415N-108MH - **Series:** VSUN N-108MH - **Rated power:** 415 W - **Cell technology:** TOPCon ## How it compares Compared against segment TOPCon 400-450 W (1218 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 415 W | 435 W | Weak - bottom 9% | | | Module efficiency | 21.25% | 22.00% | Weak - bottom 8% | 8,904 | | Power density | 212.5 | 220.2 | Weak - bottom 10% | 8,791 | | Temperature coefficient | -0.300 | -0.290 | Typical | 6,093 | | Weight (kg) | 21.4 kg | 22.0 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 21.25% | 22.00% | Weak - bottom 8% | 8,904 | | Power density | 212.5 | 220.2 | Weak - bottom 10% | 8,791 | | Temperature coefficient | -0.300 | -0.290 | Typical | 6,093 | | Weight per kWp | 51.6 | 51.4 | Typical | 4,944 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Watch out for - **21.25% module efficiency** - Bottom 8% of the TOPCon 400-450 W segment, against a median of 22.00%. Ranked 8,904th in the whole database. - **212.5 watts per square metre** - Bottom 10% of the TOPCon 400-450 W segment, against a median of 220.2. - **Best for:** Residential, commercial, shaded-installations and hot-climate. - **Not ideal for:** Tight roof space and roofs where every square metre has to count. ## Specification ### Electrical - **Rated power (Pmax):** 415 W - **Efficiency:** 21.25 % - **Voltage at Pmax (Vmp):** 31.33 V - **Current at Pmax (Imp):** 13.24 A - **Open-circuit voltage (Voc):** 37.92 V - **Short-circuit current (Isc):** 13.99 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.300 %/degC - **Temperature coefficient of Voc:** -0.260 %/degC - **Temperature coefficient of Isc:** 0.046 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 108 ### Physical - **Length:** 1722 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 21.4 kg - **Area:** 1.95 m2 - **Power density:** 212.5 Wp/m2 ### Warranty and degradation - **Product warranty:** 25 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 87.4 % - **First-year degradation:** 1.00 % - **Annual degradation:** 0.40 % - **Output after 30 years:** 363 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 8904 of 14005 | | Power density | 8791 of 14005 | | Temperature coefficient | 6093 of 14005 | | Weight | 4944 of 14005 | | Warranty | 21 of 14005 | ## About this series The VSUN N-108MH panel series introduces a new quality to rooftop installations thanks to the use of **N-type TOPCon cell technology**, which effectively eliminates the problem of LID degradation and ensures excellent performance even in diffused light. Choosing this series is primarily a guarantee of stable energy production for decades, which clearly distinguishes it from standard older-generation modules. Thanks to the use of **108 Half-Cut cell construction**, the panels are characterized by optimal dimensions and lower weight, making them an ideal solution for prosumers looking for maximum power on a limited roof area. A key technological differentiator is the **exceptionally low temperature coefficient**, effectively limiting energy losses during summer heatwaves, which is becoming an increasingly important economic asset in the Polish climate. This series effectively solves the problem of power drops caused by partial shading and ensures long-term investment security thanks to increased resistance to mechanical loads. This equipment is dedicated to demanding home users and companies that focus on **reliability and maximizing yields** from every square meter of the installation. Solid workmanship and modern cell architecture place the VSUN N-108MH at the forefront of premium segment solutions, offering significantly better parameter stability than traditional solutions available on the market. ## Notable figures - Efficiency of 21.2% is 0.8pp below the \*\*TOPCon 400-450W\*\* median (22.0%) - Power density of 212.5 W/m² is 7.7 W/m² below \*\*TOPCon 400-450W\*\* median (220.2 W/m²) - needs more roof space - Temperature coefficient of -0.30%/°C matches the \*\*TOPCon 400-450W\*\* median - In the top 64% for efficiency among all TOPCon panels ## Questions ### How does N-type TOPCon technology in the VSUN N-108MH differ from older PERC panels? Unlike P-type cells, N-type TOPCon cells are not subject to LID degradation, the initial power loss seen in the first hours of sun exposure. Thanks to an additional passivation layer, the panel achieves higher efficiency (over 21%) and better utilizes diffuse light on cloudy days. In practice, this means higher and more stable energy yields over the panel's lifetime compared to classic PERC modules. ### What warranty comes with VSUN N-108MH panels, and what does it cover? The manufacturer provides a 25-year product warranty covering material and workmanship defects, plus a 30-year linear power output warranty. This means the panel should still deliver a high percentage of its initial power after that period. Such an extended warranty reflects the manufacturer's confidence in the durability of TOPCon cells and is an important factor when comparing offers from different brands. ### Are VSUN N-108MH panels suitable for a small pitched roof? Yes, thanks to the 108-cell half-cut design, the panel has compact dimensions of roughly 1722x1134 mm and weighs about 21.4 kg, making it easier to carry and install on typical pitched roof structures. With up to 435 Wp per module, this lets you fit more capacity onto a limited roof area, which matters for single-family homes with small roof surfaces. ### How does the VSUN N-108MH perform on hot roofs in summer? The panel has a very low temperature coefficient of -0.3%/°C, notably better than the -0.35 to -0.4%/°C typical of PERC modules. This means a smaller power drop as cell temperature rises above the standard 25°C test condition, which matters in summer when roof surfaces in Poland can reach 60-70°C. This translates into higher real-world energy output during the hottest months. ### Is the VSUN N-108MH a bifacial solar panel? No, this specific version of the N-108MH series is a mono-facial (single-sided) panel using TOPCon technology and 108 half-cut cells. The manufacturer also offers a bifacial variant (marked with a BB suffix) that uses a transparent backsheet and additionally generates energy from reflected light on the rear side. When choosing between versions, consider your mounting structure type and the space available beneath the modules. ### What is half-cut cell construction in the VSUN N-108MH and what are its benefits? Half-cut means a standard silicon cell is laser-cut in half, resulting in 108 smaller cells wired into two independent electrical sections. This reduces resistive losses and improves the panel's tolerance to partial shading, e.g. from a chimney or antenna - shading one section lowers output only in that section instead of disabling the entire module. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/661e0d32bc542-fcf667ee5feb.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Just Solar JST-EDMH-(445-465)W-TD (465W class)](https://comparepv.com/panel/just-solar-jst-edmh-445-465-w-td-465w-class) | 465 W | +50 W, +2.6 pp | | [Luxor Solar LX-465M/182R-96+ GG](https://comparepv.com/panel/luxor-lx-465m-182r-96-gg) | 465 W | +50 W, cooler, +2.6 pp | | [AIKO AIKO-A460-MAH54Mb](https://comparepv.com/panel/aiko-shenzhen-aiko-digital-energy-technology-co-ltd-aiko-a460-mah54mb-1) | 460 W | +45 W, cooler, +2.4 pp | | [Luxor Solar LX-465M/182R188-108+ GG](https://comparepv.com/panel/luxor-solar-lx-465m-182r188-108-gg) | 465 W | +50 W, heavier, +2.4 pp | | [Just Solar JST-EDMH-(445-465)W-TD (460W class)](https://comparepv.com/panel/just-solar-jst-edmh-445-465-w-td-460w-class) | 460 W | +45 W, +2.3 pp | | [Luxor Solar LX-460M/182R-96+ GG](https://comparepv.com/panel/luxor-lx-460m-182r-96-gg) | 460 W | +45 W, cooler, +2.3 pp | | [Philadelphia Solar PS-MNB108(HCBF)-460W](https://comparepv.com/panel/philadelphia-solar-ps-mnb108-hcbf-460w) | 460 W | +45 W, cooler, +2.3 pp | | [JA Solar JAT54S40-460/LR](https://comparepv.com/panel/ja-solar-jat54s40-460-lr) | 460 W | +45 W, cooler, +2.2 pp | | [VSUN VSUN390-108BMH-DG](https://comparepv.com/panel/vsun-vsun390-108bmh-dg) | 390 W | -25 W, heavier, -1.3 pp | | [VSUN VSUN395-108BMH-DG](https://comparepv.com/panel/vsun-vsun395-108bmh-dg) | 395 W | Hotter, heavier, -1.0 pp | | [VSUN VSUN400-108BMH-DG](https://comparepv.com/panel/vsun-vsun400-108bmh-dg) | 400 W | Hotter, heavier, -0.8 pp | | [VSUN VSUN405-108BMH-DG](https://comparepv.com/panel/vsun-vsun405-108bmh-dg) | 405 W | Hotter, heavier, -0.5 pp | | [VSUN VSUN410-108BMH](https://comparepv.com/panel/vsun-vsun410-108bmh) | 410 W | Hotter, -0.2 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +95 W, cooler, +3.8 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +80 W, cooler, +3.6 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +90 W, cooler, +3.4 pp | --- Source: https://comparepv.com/panel/vsun-vsun415n-108mh Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.